Kip and Mike are pretty open about the Miatas. I don't know much about Mike's ITA Miata (don't even know if it is a 1.6 or 1.8) but I do know Kip told me the computer was necessary on the 99 ITS car in order to get it to rev to make power. I think he told me around 160, maybe slightly more, peak rwhp.

My personal view is that the Miatae are strong, nearly unbeatable at Roebling, but weaker at the up/down tracks like VIR and Road Atlanta.